There are more options to ease the task of adding images as you surf the web, like adding a "Pin it" button to your browser or installing Pinterest for iPhone. See Goodies section, pinterest.com/about/goodies, for more details.
You may also want to add images from other Pinterest boards, to attract visitors pinterest video downloader hd to your board. This is called repining, and is as simple as hovering over the image and clicking the repin Button. Here you will also see the Like and Comment buttons.
Another strong social aspect is the following option. You can follow people or specific board, and your home page will change accordingly as they update their content. For following a Pinterest user click the "Follow All" button on their profile and for following a specific Pinterest board, you will find the "Follow" button on the top of the board.